Idea Summary
In Code-Editor and APEX-AI-Assistent add a button to run the current SQL-Query and display the results 

Use Case
When you are developing a SQL-Query in CodeEditor-SQL-Query or in the APEX-Assistent, You have to copy&paste the query into an open sql-command (sqlplus, SQLDeveloper, SQLCommand, …) to test the results, or do it the other way round.

You have no possibility to run this query from inside these pages to see if the result is what you expect?
With this idea you can stay in on the page, check the result, modify the query, …
 

Preferred Solution (Optional)
Add a “Run-Query” button the CodeEditor and APEXAssistent pages (like the “Save and run Page” button) and display the results (in the page or as a popup).